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Relationship among capillary pressure,saturation and phases interfacial area |
TAO Jun1,2,YAO Jun2,LI Ai-fen2,ZHAO Xiu-cai2
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(1. International Research Center, PetroChina, Beijing 100083, China;2. College of Petroleum Engineering in China University of Petroleum,Dongying 257061,Shandong Province,China)
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Abstract: |
When fluids flow in porous media,many phenomena such as mass transfer and non-aqueous dissolution have some relationship with phases interfacial area. The fluid distribution in each pore and throat was expressed quantitatively by pore-scale network model. The capillary pressure, saturation and phases interfacial area of fluid flowing in pore-scale network model were calculated, and the relation was obtained by using the knowledge of elementary geometry. The results show that there is well-defined functional relationship among capillary pressure,saturation and phases interfacial area. This relationship laid foundation for researching on non-aqueous phase liquid dissolution, interfacial mass transfer phenomenon. |
Key words: pore-scale network model multiphase flow capillary pressure phases interfacial area saturation |
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